Looking for low-cost GPS receiver that is capable of outputting I/Q data

Hi there,

I am looking for a low-cost software GPS receiver (or evaluation kit)
that is capable of outputting I/Q data. Better less than 300 bucks.

USB connection to PC is preferred, while Ethernet is OK. Sensitivity
should be no worse than -144 dBm.

BTW, I already have kits from SiGe and Rakon, this time I am looking
for products of other manufactures.

If you know there is one please share the info.

Thank you!

Johnson

If you want to do some hacking, you could buy any receiver that has
separated RF and baseband chips.
I, Q and clock should be on the PCB... The problem is to sample the
data stream...

How is the Sige? I saw that you have the limit of 40s seconds of
sampling... is it true?

claudegps
www.claudegps.altervista.org

Hello,

I am not hacking, actually I am testing a new algorithm.

I tried SiGe before, as far as I knew, there was no limit of 40s of
sampling. I once collected data for about 30 minutes.

Johnson


claudegps wrote:

Johnson, a little misunderstanding :)
I was not meaning that you are doing hacks with the I/F data.
My suggestion was that if ou want to hack a commercial receiver, it
may be possible to get the IF data.

The hacking was related to the receiver and the IF data collecting,
not you work in general :)


Ok, thanks for the info.

Here's a note on a baseband GPS receiver:

http://www.maxim-ic.com/app-notes/index.mvp/id/4237

--- CHAS